What are the earliest signs of autism in toddlers?

Limited eye contact, not responding to their name, delayed speech, repetitive movements, and difficulty with routine changes.

When should ABA therapy start?

Ideally between 18 months and 5 years, when early intervention has the strongest impact.

My child is under 3 — what should I do first?

Contact Early Childhood Intervention (ECI). It's free and requires no referral.

2026-06-07 · All Aboard ABA · Local Resources

Early Signs of Autism in Toddlers: When Should Fort Bend Parents Seek ABA?

Quick answer: Early signs of autism in toddlers include limited eye contact, delayed or absent speech, not responding to their name, repetitive movements, and difficulty with changes in routine. If you notice these, the best time to act is now — ABA therapy started between 18 months and 5 years gives children the strongest developmental foundation.

Common early signs to watch for

Limited or no eye contact; not responding to their name by 12 months; delayed speech or loss of words; repetitive movements like hand-flapping, rocking, or lining up toys; strong reactions to changes in routine; limited pointing, waving, or showing. Every child is different — these are signals to look closer, not a diagnosis.

When to seek help

Don't wait to "see if they grow out of it." If your child is under 3, Early Childhood Intervention (ECI) is free and needs no referral. If they're older, a private evaluation can confirm a diagnosis and open the door to ABA.

Why early intervention works

The earlier consistent ABA begins — ideally 18 months to 5 years — the stronger the long-term gains in communication and daily skills.

Local support

All Aboard ABA serves families across Sugar Land, Missouri City, Stafford, and Fort Bend County with fast-start intake and built-in parent coaching.

Seeing the signs? Book an Intake Call — we'll help you understand the next step.